Nut-lock.



No. 836,507. PATENTED NOV. 20, 1906.

A. R. KEENE. NUT LOCK.

APPLICATION FILED APR. 5. 1906.

UNITED STATES ARTI-lljlt it. KEENE. ()F HAVRE DE Specification of Letters Patent.

T OFFICE.

GRACE, MARYLAND, ASSIGNOR OF ON E- HAVRE DE GRACE, MARYLAND.

Application fi led April5,1906. Serial No. 309.9 77.

1'0 all wit/mt it may concern.-

Be it known that I, ARTHUR R. KEENE, a citizen of the United States, residing at Havre de Grace, in the county of Harford and State of Maryland, have invented certain new and useful Improvements in Nut- Locks, of which the following is a specification.

My invention relates nut-locks, and has for to improvements in one of its ob ects to provide a simple and inexpensive device of this character by means of which the nut when brought to a stop may be locked at such point without requiring it to be turned to any particular point.

Another object of the invention is to pro vide a construction that will enable the ready removal of the nut when desired.

The invention is illustrated in. the accompanying drawings, in whieh- Figurel is avertical sectional view through a rail and the fish-plates at opposite sides thereof and shows a bolt and nut with my improved locking device. Fig. 2 is a side elevation of thesame. Fig. 3 is an outer face view of the stationary locking-collar. Fig. 4 is an inner face view of the same. Fig. 5 illustrates in side elevation the three parts forming the locking deviceto wit, the sta tionary collar, the locking-Washer, and the nut and Fig. 6 illustrates the inner side of the nut.

Referring to the drawings by numerals, 1 designates a rail to which in the present instance the bolt and nut-lock is to be-applied, and 2 designates the fish-plates at opposite sides of the rail, which serve the usual and wellknown function. The rail is provided with the usual bolt-hole 3, while the fishplates are each provided with a hole 4 for the assage of the bolt, and one of the fish-plates as an elliptical entrance 5 at its outer side for a purpose to be presently described. The bolt 6 has a head 7 and is assed throu h the hole in one fish-plate an also throng 1 the hole in the rail. The threaded end of the bolt then projects through the hole 4 in the other fishplate. collar 8 has a central circular opening 9, through which the threaded end of the bolt proects, and at the inner side and surrounding the circular opening said collar is provided with an elliptical flange 10, which projects laterally toward the fishplate. ThlS elliptical flange 10 is of a size and shape to correspond with the shape of the entrance 5 to the hole 4 in the fishplate, so that the flange may enter said entrance, but be prevented from turning therein. It is obvious that the shape of the flange and the entrance to the hole 4 in the fish-plate may be varied so long as it is other than circular, the object being to prevent the collar from turning. The outer circumferential edge of the collar is provided with a lurality of depressions l 1. The nut 12 may e of any exterior angular shape desired; but each side is provided with a bottom recess or depression 13.

A washer 14, of some suitable flexible metal which will set in any position to which it is bent, has position on the bolt between the recesses of the nut and the recesses in the collar. This washer remains flat during the operation of turning the nut on the threaded end of the bolt, and when the nut has been screwed as far as it can. go on the bolt and the flange 10 and collar forced into contact with the fish-plate portions 15 of the washer may then be bent inward, so as to enter the circumferential depressions 11 in the collar, and other portions 16 of the washer may be bent outward into the depressions 13 of the nut, as seen in Fig. 2, so as to lock the nutto the stationary collar and prevent its turning. When it is desired to remove the nut, the bent portions of the metal washer may be flattened out by bending the same away from the recesses and depressions and the nut can then be removed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a nut-lock, the combination with the lates to be secured together one of which has a hole with an entrance shaped so as to be other than circular, of a bolt; a perforated collar having a laterally-projecting flange at one side she. ed so as to fit said hole-entrance and a plura ity of'depressions in its 0 posite side; a nut having recesses, and a Eexible metal washer between the collar and nutjand engaging the depressions in the collar and the recesses in the nut to lock the two together.

In testimony whereof I afii'x my signature in presence of two witnesses.

ARTHUR a. KEENE. Witnesses:

CHARLES B. MANN, Jr., JoHN W. HEWES.

Patented Nov. 20, 1906. 

